Gain insights into Java 8's new features: lambdas, Stream API, Functional Interfaces, Collections improvements, Memory Management, and Date & Time API to enhance productivity and code quality.

Java 8 has introduced a ton of features and enhancements to boost developer productivity, while making your code faster, more concise, and more readable. 
In this course, you will learn about lambdas, Java Stream API, Functional Interfaces, as well as lots of other new improvements related to Collections, Memory Management, Date & Time API. 
After completing this course, you’ll be well versed in all the functionality of Java 8 and be ready to utilize these new features in your own code.

Java 8 for Experienced Developers: Lambdas, Stream API & Beyond

In this lesson, we will look at some of the methods of the `Collectors` class that help us aggregate the data in streams, e.g., sum, average, etc.

## 1) `counting()`

This function returns a `Collector` that counts the number of the input elements.

Suppose we have a list of employees, and we need the count of employees with an age more than 30.

In this case, we can use the `counting()` method as shown below.

In this lesson, we will look at some of the methods of the `Collectors` class that help us aggregate the data in streams, e.g., sum, average, etc.

# 1) `counting()`

This function returns a `Collector` that counts the number of the input elements.

Suppose we have a list of employees, and we need the count of employees with an age more than 30.

In this case, we can use the `counting()` method as shown below.

In this lesson, we will learn about methods of the Collectors class, which are used for aggregation.

Let's Begin

Taste of lambdas

Stream API

Java 8 Collections Improvements

Java 8 Concurrency API Improvements

Java Time API

Conclusion

Collectors: Aggregation Operations

1) `counting()`